info API minor enhancements

Return 503 instead of 400 when netdata hasnt started yet, move struct definitions in .c, swagger update (#5891)

5 files changed, 171 insertions, 12 deletions

diff --git a/web/api/formatters/charts2json.c b/web/api/formatters/charts2json.c
index e3dbd40dc3..e4e2f4dfa4 100644
--- a/web/api/formatters/charts2json.c
+++ b/web/api/formatters/charts2json.c
@@ -136,6 +136,18 @@ void charts2json(RRDHOST *host, BUFFER *wb) {
     buffer_sprintf(wb, "\n\t]\n}\n");
 }
 
+// generate collectors list for the api/v1/info call
+
+struct collector {
+    char *plugin;
+    char *module;
+};
+
+struct array_printer {
+    int c;
+    BUFFER *wb;
+};
+
 int print_collector(void *entry, void *data) {
     struct array_printer *ap = (struct array_printer *)data;
     BUFFER *wb = ap->wb;
diff --git a/web/api/formatters/charts2json.h b/web/api/formatters/charts2json.h
index 348e736895..926e76d50b 100644
--- a/web/api/formatters/charts2json.h
+++ b/web/api/formatters/charts2json.h
@@ -5,16 +5,6 @@
 
 #include "rrd2json.h"
 
-struct collector {
-    char *plugin;
-    char *module;
-};
-
-struct array_printer {
-    int c;
-    BUFFER *wb;
-};
-
 extern void charts2json(RRDHOST *host, BUFFER *wb);
 extern void chartcollectors2json(RRDHOST *host, BUFFER *wb);
 
diff --git a/web/api/netdata-swagger.json b/web/api/netdata-swagger.json
index 99ed95209f..2fa55c4faa 100644
--- a/web/api/netdata-swagger.json
+++ b/web/api/netdata-swagger.json
@@ -18,13 +18,16 @@
     "/info": {
       "get": {
         "summary": "Get netdata basic information",
-        "description": "The info endpoint returns basic information about netdata. It provides:\n* netdata version\n* netdata unique id\n* list of hosts mirrored (includes itself)\n* number of alarms in the host\n  * number of alarms in normal state\n  * number of alarms in warning state\n  * number of alarms in critical state\n",
+        "description": "The info endpoint returns basic information about netdata. It provides:\n* netdata version\n* netdata unique id\n* list of hosts mirrored (includes itself)\n* Operating System, Virtualization and Container technology information\n* List of active collector plugins and modules\n* number of alarms in the host\n  * number of alarms in normal state\n  * number of alarms in warning state\n  * number of alarms in critical state\n",
         "responses": {
           "200": {
             "description": "netdata basic information",
             "schema": {
               "$ref": "#/definitions/info"
             }
+          },
+          "503": {
+            "description": "netdata daemon not ready (used for health checks)"
           }
         }
       }
@@ -706,6 +709,90 @@
             "host2.example.com"
           ]
         },
+        "os_name": {
+          "type": "string",
+          "description": "Operating System Name",
+          "example": "Manjaro Linux"
+        },
+        "os_id": {
+          "type": "string",
+          "description": "Operating System ID",
+          "example": "manjaro"
+        },
+        "os_id_like": {
+          "type": "string",
+          "description": "Known OS similar to this OS",
+          "example": "arch"
+        },
+        "os_version": {
+          "type": "string",
+          "description": "Operating System Version",
+          "example": "18.0.4"
+        },
+        "os_version_id": {
+          "type": "string",
+          "description": "Operating System Version ID",
+          "example": "unknown"
+        },
+        "os_detection": {
+          "type": "string",
+          "description": "OS parameters detection method",
+          "example": "Mixed"
+        },
+        "kernel_name": {
+          "type": "string",
+          "description": "Kernel Name",
+          "example": "Linux"
+        },
+        "kernel_version": {
+          "type": "string",
+          "description": "Kernel Version",
+          "example": "4.19.32-1-MANJARO"
+        },
+        "architecture": {
+          "type": "string",
+          "description": "Kernel architecture",
+          "example": "x86_64"
+        },
+        "virtualization": {
+          "type": "string",
+          "description": "Virtualization Type",
+          "example": "kvm"
+        },
+        "virt_detection": {
+          "type": "string",
+          "description": "Virtualization detection method",
+          "example": "systemd-detect-virt"
+        },
+        "container": {
+          "type": "string",
+          "description": "Container technology",
+          "example": "docker"
+        },
+        "container_detection": {
+          "type": "string",
+          "description": "Container technology detection method",
+          "example": "dockerenv"
+        },
+        "collectors": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "description": "Array of collector plugins and modules",
+            "properties": {
+              "plugin": {
+                "type": "string",
+                "description": "Collector plugin",
+                "example": "python.d.plugin"
+              },
+              "module": {
+                "type": "string",
+                "description": "Module of the collector plugin",
+                "example": "dockerd"
+              }
+            }
+          }
+        },
         "alarms": {
           "type": "object",
           "description": "number of alarms in the server.",
diff --git a/web/api/netdata-swagger.yaml b/web/api/netdata-swagger.yaml
index e5689e3927..c021efefa7 100644
--- a/web/api/netdata-swagger.yaml
+++ b/web/api/netdata-swagger.yaml
@@ -20,6 +20,8 @@ paths:
         * netdata version
         * netdata unique id
         * list of hosts mirrored (includes itself)
+        * Operating System, Virtualization and Container technology information
+        * List of active collector plugins and modules
         * number of alarms in the host
           * number of alarms in normal state
           * number of alarms in warning state
@@ -29,6 +31,8 @@ paths:
           description: netdata basic information
           schema:
             $ref: '#/definitions/info'
+        '503':
+          description: netdata daemon not ready (used for health checks)
   /charts:
     get:
       summary: 'Get a list of all charts available at the server'
@@ -460,6 +464,72 @@ definitions:
         example:
           - host1.example.com
           - host2.example.com
+      os_name:
+        type: string
+        description: Operating System Name
+        example: Manjaro Linux      
+      os_id:
+        type: string
+        description: Operating System ID
+        example: manjaro
+      os_id_like:
+        type: string
+        description: Known OS similar to this OS
+        example: arch
+      os_version:
+        type: string
+        description: Operating System Version
+        example: 18.0.4
+      os_version_id:
+        type: string
+        description: Operating System Version ID
+        example: unknown
+      os_detection:
+        type: string
+        description: OS parameters detection method
+        example: Mixed
+      kernel_name:
+        type: string
+        description: Kernel Name
+        example: Linux
+      kernel_version:
+        type: string
+        description: Kernel Version
+        example: 4.19.32-1-MANJARO
+      architecture:
+        type: string
+        description: Kernel architecture
+        example: x86_64
+      virtualization:
+        type: string
+        description: Virtualization Type
+        example: kvm
+      virt_detection:
+        type: string
+        description: Virtualization detection method
+        example: systemd-detect-virt
+      container:
+        type: string
+        description: Container technology
+        example: docker
+      container_detection:
+        type: string
+        description: Container technology detection method
+        example: dockerenv
+      collectors:
+        type: array
+        items:
+          type: object
+          description: Array of collector plugins and modules
+          properties:
+            plugin:
+              type: string
+              description: Collector plugin
+              example: python.d.plugin
+            module:
+              type: string
+              description: Module of the collector plugin
+              example: dockerd
       alarms:
         type: object
         description: number of alarms in the server.
diff --git a/web/api/web_api_v1.c b/web/api/web_api_v1.c
index 528794c307..e418b03919 100644
--- a/web/api/web_api_v1.c
+++ b/web/api/web_api_v1.c
@@ -717,7 +717,7 @@ static inline void web_client_api_request_v1_info_mirrored_hosts(BUFFER *wb) {
 
 inline int web_client_api_request_v1_info(RRDHOST *host, struct web_client *w, char *url) {
     (void)url;
-    if (!netdata_ready) return 400;
+    if (!netdata_ready) return 503;
 
     BUFFER *wb = w->response.data;
     buffer_flush(wb);